Hi Kir, > These numbers very much resemble fsync() rate with write cache enabled > (~1000/sec) and disabled (50-70/sec). > check write cache settings with hdparm + check whether you have barrier > mount option on ext3.
I use exactly the same system. The only thing I change is the kernel. kernel with OpenVZ patches is factor 20 slower! That is why I ask if you can reproduce the problem? > I believe, 2.6.32 is just more honest on fsync and really forces drive > to save data. While earlier kernels did this only with BARRIER mount > option (or ignored this problem at all)... Ha - honest or not, the fsync rate is simply too slow - such system is not usable at all. Besides, the standard debian 2.6.32 kernel is as fast as always. The problem only shows up with the OpenVZ patches. - Dietmar _______________________________________________ Users mailing list Users@openvz.org https://openvz.org/mailman/listinfo/users
